N-octane catalytic isomerization with aluminium and aluminiumlanthanum pillared nontronite
Abstract Nontronite samples pillared with aluminium (Pt/Al-PilM) and aluminium-lanthanum (Pt/AlLa-PilM) were prepared from natural nontronite, characterized and tested as catalyst in n-octane hydroisomerization reaction. The results were compared with those obtained from the same reaction using comm...
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Published in: | Cerâmica Vol. 61; no. 360; pp. 420 - 427 |
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Main Authors: | , , , , , |
Format: | Magazine Article |
Language: | English |
Published: |
Associação Brasileira de Cerâmica
01-12-2015
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Subjects: | |
Online Access: | Get full text |
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Summary: | Abstract Nontronite samples pillared with aluminium (Pt/Al-PilM) and aluminium-lanthanum (Pt/AlLa-PilM) were prepared from natural nontronite, characterized and tested as catalyst in n-octane hydroisomerization reaction. The results were compared with those obtained from the same reaction using commercial Y-zeolite impregnated with platinum (Pt-Y). Experiments with commercial zeolite show that platinum is essential to maintain the reactional selectivity of the products. The conversion capacities of (Pt/Al- PilM) and (Pt/AlLa-PilM) were 70% and 40%, respectively, surpassing the Pt-Y performance of 30%, but with the same selectivity. X-ray diffraction data show that organic matter oxidation followed by cationic homogenization is of paramount importance for pillared clay preparation.
Resumo Amostras de nontronita pilarizadas com alumínio (Pt/Al-PilM) e alumínio-lantânio (Pt/AlLa-PilM) foram preparadas a partir de nontronita natural, caracterizadas e testadas como catalisador na reação de hidroisomerização do n-octano. Os resultados foram comparados com os obtidos da mesma reação, usando zeólita Y comercial impregnada com platina (Pt-Y). Experimentos com zeólita comercial mostraram que a platina é essencial para manter a seletividade reacional dos produtos. A capacidade de conversão das amostras (Pt/Al-PilM) e (Pt/AlLa-PilM) foram 70% e 40% respectivamente, superando o desempenho de 30% da Pt-Y, mas com a mesma seletividade. Os resultados de difração de raios X mostraram que a oxidação da matéria orgânica seguida da homogeneização catiônica é de suma importância para preparação da argila pilarizada. |
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ISSN: | 0366-6913 1678-4553 0366-6913 |
DOI: | 10.1590/0366-69132015613601901 |